The Client Is Comatose and the Healthcare Provider Orders That

The client is comatose and the healthcare provider orders that the client's temperature is to be taken by the rectal route. The student nurse is assisting the more experienced nurse and volunteers to obtain the client's temperature. Which statement by the student nurse indicates the need for further education prior to monitoring a rectal temperature?

A) "I will need to turn the client into the prone position."
B) "The probe for a rectal thermometer is usually red."
C) "I should insert the thermometer 1.5 to 4 centimeters into the client's anus."
D) "This is an appropriate way to monitor a client's temperature if they are unable to close the mouth around the oral thermometer."